Walmart, Home Depot, home hardware. Literally any hardware store. I bought mine at Canadian tire, went home, tried and failed the night night method because I panicked last second. Ended up cutting the strap and fashioned it into a noose, failed at that too. Ended up in a psych ward for a week. Now here I am again considering buying the ratchet strap again because the strap itself seemed way more effective with losing consciousness then an ordinary rope